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Korvikt [17]
3 years ago
14

Is (1, 4) a solution to this system of equations? 3x + y = 7

Mathematics
1 answer:
inysia [295]3 years ago
8 0
B. Yes, (1,4) is a solution
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The sum of 4 consecutive integers is 40 what is the third number in this sequence?
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Let's represent the numbers by : x, x+1, x+2, x+3
x+x+1+x+2+x+3=40                     The third number in the sequence is x+2
4x+6=40                                           8.5+2=10.5
4x+6-6=40-6                               Therefore the third number in the sequence is
4x=34                                             10.5
4x/4=34/4
x=8.5
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If x + 3 = 10, then x = 7.<br><br><br> Statement<br><br><br> Reasons
luda_lava [24]
Reason: if you subtract 3 on both sides of the equal sign that will leave you with 7.
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